عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
TLpq303581418
انگلیسی
SENSORY AND CHEMICAL CHARACTERISTICS OF LAMB, MUTTON AND MECHANICALLY DEBONED TURKEY MEAT PATTIES
[Thesis]
A. M. Yaghi
Iowa State University
1987
151-151 p.
Ph.D.
Iowa State University
1987
Three experiments were performed to investigate the use of ground meat of various animal species in different formulations. In the first and second experiments, different levels of lean mutton meat (10%, 15% and 20%) and a constant percentage (20%) of mechanically deboned turkey (MDT) were mixed with lamb lean and lamb fat. In the third experiment, different levels of lean mutton meat (15% and 30%) were mixed with ground beef, ground pork and MDT, separately. The evaluations included: proximate analysis, pH determinations, packaging, storage conditions, oxidative rancidity, organoleptic evaluation, bacterial counts and quantitative measurement of headspace volatiles by gas chromatography (GC). Film type and storage time in the first experiment showed a highly significant effect on thiobarbituric acid (TBA) values in the refrigeration and/or frozen treatments. Vacuum packaging and frozen storage increased shelf life as compared with the highly permeable film and refrigerated storage. In Experiment II, the sensory scores showed that the addition of up to 20% mutton, 20% MDT and 60% lamb lean and lamb fat to the formulations had no effect on patties' quality traits. GC showed that concentration and area of volatiles were affected significantly by the type of meat treatments and the volatilization temperature, but not by storage time. Meat treatments had significant effects (p < 0.01) on TBA numbers. MDT treatments had the highest TBA values across all storage times. Microbial growth curves were significantly (p < 0.05) affected by storage time. In the third experiment, TBA values were not affected significantly (p > 0.05) by meat treatments stored under frozen conditions. However, refrigerated conditions showed a significant (p < 0.05) increase in TBA values over time. Meat combinations and storage time significantly (p < 0.05) decreased pH values in both refrigeration and frozen storage treatments.
Biological sciences
Food science
A. M. Yaghi
مطالعه متن کتاب p
[Thesis]
276903
a
Y
